Peugeot AL4 Gearbox Repair Tehran: 206/207/Pars Guide 2026

Peugeot AL4 gearbox repair Tehran is what we do every working day at Auto Service Norik (اتو سرویس نوریک), a specialist workshop near Fatemi Square in central Tehran. If you drive a Peugeot 206, 207 or Pars automatic and your car shifts harshly, slips, flashes the S and snowflake lights or refuses to move, this English guide explains what usually goes wrong with the AL4 (also called DP0), how we diagnose it, what a repair costs and how to book. It is written for expats, foreign residents, diplomats’ drivers and Iranian owners who prefer English.

You can message us in English on واتساپ ۰۹۰۵۵۴۷۵۶۱۵. Send your car model, mileage and a short video of the problem, and we will reply with a first opinion.

Peugeot AL4 gearbox repair Tehran: what is the AL4?

The AL4 is a four-speed automatic transmission developed by PSA and Renault. In Iran it is fitted to the Peugeot 206 automatic, the 207 automatic and the Pars automatic.

How the AL4 works

The AL4 uses a torque converter, a hydraulic valve body with electronic solenoid valves, and a set of friction elements: multi-plate clutches, two brake bands and multi-plate brakes. A dedicated gearbox computer (TCU) reads speed sensors, oil temperature and engine data, and controls oil pressure through the solenoids to engage each gear.

Why AL4 gearboxes fail

Most AL4 failures start with oil. Old or low oil reduces pressure, solenoids stick, and the friction elements begin to slip. Heat from heavy Tehran traffic speeds up this process. Electrical faults such as a damaged sensor connector or worn wiring are also very common and often cheaper to fix than owners fear.

Common AL4 symptoms we see in Tehran

Limp mode (stuck in third gear)

When the TCU detects a fault, it holds the gearbox in third gear for protection. The car pulls away slowly and the S and snowflake lights flash. Read more in Persian: حالت اضطراری گیربکس AL4.

Harsh shifts and delayed engagement

A thump when selecting D or R, or a jolt between 2nd and 3rd, often points to oil pressure control or the pressure regulating solenoid (EPC). See کد خطای P0745 گیربکس AL4.

Slipping and loss of pull

If the engine revs rise but the car does not accelerate, the clutches or brakes are slipping. Driving on like this burns the plates. See ۲۰۶ اتومات کشش ندارد.

Car does not move in D or R

This can be low oil, a broken selector cable or a failed pump. Do not flat-tow the car with a rope; see بکسل کردن ۲۰۶ اتومات and گیربکس ۲۰۶ اتومات حرکت نمیکند.

Fault codes

Typical codes include P0700, P0715, P0730 and P0745. Our Persian code guides: کد خطای P0700, کد خطای P0715 and کدهای خطای گیربکس AL4.

How we diagnose AL4 faults

We always start with the cheapest possible cause and only open the gearbox when the tests prove it is necessary.

Step 1: free checkup and full diagnosis

We read stored and current codes from the gearbox computer, check live data (engine speed, turbine speed, output speed, commanded pressure and oil temperature) and the adaptive values. The automatic gearbox checkup is free.

Step 2: oil inspection

We check oil level, colour and smell, and look for metal particles. Burnt oil or debris tells us the internal parts are worn.

Step 3: road test

A road test with warm oil and diagnostic equipment connected shows how the gearbox behaves in real traffic, on hills and during kick-down.

Step 4: written estimate

Before any work starts, you receive a clear estimate. Nothing is done without your approval.

Repair options and prices

Small repairs

Many problems are solved with a connector repair, a sensor, a solenoid valve, an oil service and a reset. These are priced after the checkup.

Oil service

An oil service with the correct AL4 fluid, correct level setting and a TCU reset solves many harsh-shift complaints. Persian guide: سرویس روغن گیربکس اتوماتیک.

Full rebuild

When the friction elements, bushes or pump are worn, we rebuild the gearbox with a full overhaul kit, clean or replace the valve body components, set the oil level, reset the TCU and road test the car. Full details in Persian on our pillar page: تعمیر گیربکس اتومات ۲۰۶. Cost breakdown: هزینه تعمیر گیربکس اتومات ۲۰۶.

Peugeot AL4 gearbox repair Tehran for expats and foreign residents

Many of our English-speaking customers are new to Tehran and unsure where to take an automatic Peugeot. This section answers the questions they ask most.

Booking Peugeot AL4 gearbox repair Tehran in English

Send a WhatsApp message in English with your car model, year, mileage and the symptoms. A short video of the dashboard and the problem helps a lot. We reply with a first opinion and suggest a time for the free checkup.

Paying and estimates

Every job starts with a written estimate in toman. You approve it before any work begins, and you can ask us to show you the old parts after the repair.

If you do not have time to bring the car

Our driver can collect the car from your home or office and return it after the work. Arrange this by phone. Inside Tehran, a car that has broken down because of a gearbox fault is towed to us free of charge.

Why choose Auto Service Norik

Specialist focus

We focus on automatic gearboxes, and the AL4 is the unit we repair most. We also repair TU5 and TU3 engines for Peugeot 405 and Pars.

Warranty

Full AL4 repairs come with a warranty of 366 days or 15,000 km and a written warranty sheet.

Driver pickup and towing

A Norik driver can collect your car from your home or office, bring it to the workshop and return it after the repair. This is arranged by phone. If your car has broken down because of a gearbox fault inside Tehran, we send a tow truck free of charge.

Parts in stock

We keep common AL4 parts such as the overhaul kit, clutch kit, filter, solenoid valves and seals. Browse our parts shop: AL4 overhaul kit, AL4 filter.

Tips to keep your AL4 healthy

Service the oil on time

Change the AL4 fluid regularly, use only fluid that meets AL4 specifications, and have the level set by the proper procedure.

Fix leaks early

Even a small leak lowers the oil level over time. See علائم نشتی روغن گیربکس AL4.

Drive smoothly when cold

Avoid hard acceleration in the first minutes on cold mornings and never shift between D and R while the car is still rolling.

Buy carefully

If you are buying a used 206 automatic, have the gearbox inspected first. Persian checklist: کارشناسی گیربکس ۲۰۶ اتومات.

AL4 in the Peugeot 206, 207 and Pars

The same AL4 gearbox is used in all three cars, so diagnosis and repair follow the same steps. The Pars is heavier, so slipping often shows up earlier on hills. Persian guides for each car: تیپ های ۲۰۶ اتومات, تعمیر گیربکس اتومات ۲۰۷ and تعمیر گیربکس اتومات پارس و ۴۰۵.

Location and opening hours

We are near Fatemi Square in central Tehran, which makes us easy to reach from most parts of the city. Read about our coverage: تعمیر گیربکس اتومات مرکز تهران.

• Opening hours: Saturday to Wednesday 9:00 to 18:30, Thursday 9:00 to 14:00, Friday closed
• Phone: ۰۲۱-۸۸۶۳۶۰۱۳ (زمان تماس: ۱۰ صبح تا ۵ عصر — call hours 10 AM to 5 PM)

Summary

If you need Peugeot AL4 gearbox repair Tehran, act early. Peugeot AL4 gearbox repair Tehran does not have to be expensive or stressful. Start with a free checkup, let the tests decide between a small repair and a rebuild, and choose a workshop that gives a written estimate and a real warranty. More Persian articles: بایگانی مقالات گیربکس اتوماتیک.

FAQ – سوالات متداول

How much does a full Peugeot AL4 gearbox repair cost in Tehran?

A full AL4 rebuild at Norik costs 80 to 100 million toman, with a warranty of 366 days or 15,000 km.

Is the gearbox checkup free?

Yes. The automatic gearbox checkup is free, and you get an estimate before any work starts.

Can you collect my car?

Yes. A Norik driver can pick up and return your car; this is arranged by phone. For cars broken down due to a gearbox fault inside Tehran, towing is free.

Do you speak English?

You can message us in English on WhatsApp, and we will reply.

Which cars do you repair?

All automatic gearboxes, with the AL4 in the Peugeot 206, 207 and Pars as our main specialty.

Can I drive in limp mode?

Only slowly and for a short distance to the workshop. Longer driving can damage the gearbox.